Why Windows Vista sucks?

All people/developers/sites/reviews says Windows Vista sucks and is bad, but they don't mention why really it's bad. I have about1 year working with Vista on a new DualCore machine.

I'm a Dot Net developer, Vista is fast, easy and non bugy. It's easier for network connections especially with BlueTooth and also for Wifi. I don't have to install drivers for most of the devices (I used to install in XP). Breif, I'm very statisfied and I can't really find what's wrong or what's bad in Vista.

Even in gaming, (I played the same game (GTA)) using the same PC (another one with 1.9Ghz) Vista was better than XP and runs the game more smoothly (Graphic Card is 128MB) I want you to talk about your own experience, what's really wrong with Vista.

Thanks